Answer:
I am pretty sure it is B.
Explanation:
I hope this helped if it didn't I am truly sorry
Answer:
A very very big hole and some ramps
Field lines become straight and perpendicular because every point of circular loop the concentric circles become larger and larger as we move away from the wire.
A scientific theory is an explanation of an aspect of the natural world that can be repeatedly tested and verified in accordance with the scientific method, using accepted protocols of observation, measurement, and evaluation of results. Where possible, theories are tested under controlled conditions in an experiment.